Please Note: This lens model will not autofocus on some Nikon cameras. See List Of Cameras

Sigma 24mm f/1.8 (5-Pin) EX DG Aspherical Macro AF Lens for Nikon F {77}

Model #246605
  • $157.00

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Sigma's F1.8 24mm prime with true macro-close focus

A 24mm full-frame prime built around an f/1.8 maximum aperture, which is a stop-plus faster than the f/2.8 primes typical of this focal length. That extra speed matters for available-light work, and it's paired with a minimum focus distance of 0.18m, letting you get close enough to small subjects that most other 24mm lenses can't touch.

The optical formula runs 10 elements in 9 groups, including 2 aspherical elements to control distortion and edge softness at this wide angle. A 9-blade diaphragm shapes out-of-focus rendering, while the internal focus design with its dual focus mechanism and floating focus system keeps the front element stationary and maintains performance across the focus range, from infinity down to that 0.18m macro distance.

Full-time manual override sits alongside autofocus, so you can fine-tune focus without switching modes, and both a distance scale and depth-of-field scale are on hand for zone-focusing work. The Nikon F mount version retains a physical aperture ring for shooters who prefer manual aperture control on older bodies. At 485g and 84mm x 83mm, it's a prime that balances well on full-frame Nikon bodies without demanding a second thought about handling.

This is a lens built for people who want speed, close-focus versatility, and manual control in one 24mm package.

Who It's For

Landscape and architecture shooters get a wide, distortion-controlled field of view from the aspherical element design, useful for interiors and environmental scenes where straight lines matter. Available-light and event photographers benefit from the f/1.8 aperture, gathering more light than typical wide primes when shooting indoors or after dusk. Anyone drawn to close-up or small-scene work gains real reach from the 0.18m minimum focus distance, tight enough for detail shots without switching lenses. Manual-focus purists and zone-focus street shooters will appreciate the distance scale, DoF scale, and full-time manual override, all workable alongside the Nikon F mount's aperture ring for direct exposure control on compatible bodies.

Key Features

  • f/1.8 maximum aperture for available-light work
  • 0.18m minimum focus distance for macro-close subjects
  • 10-element optical formula with 2 aspherical elements
  • 9-blade diaphragm for out-of-focus rendering
  • Internal focus with dual mechanism and floating system
  • Full-time manual focus override alongside autofocus
  • Physical aperture ring for manual aperture control
  • Distance scale and DoF scale for zone focusing

FAQ

What's the minimum focus distance on this 24mm?
0.18m (about 7 inches). That's closer than most 24mm lenses can focus, giving you genuine macro capability for small subjects without switching to a dedicated macro lens.
Does it have an aperture ring?
Yes. The Nikon F mount version includes a physical aperture ring, so you can adjust aperture directly without relying on camera dials - useful if you're working with older bodies that don't have electronic aperture control.
How many elements and aspherical elements are in the optical formula?
10 elements in 9 groups, with 2 aspherical elements to manage distortion and edge softness across the frame at this wide angle.
Can you manually adjust focus while autofocus is active?
Yes, full-time manual override is built in. You can fine-tune focus without switching modes or powering down autofocus.
What tools does it have for zone focusing?
Both a distance scale and depth-of-field scale are printed on the barrel, letting you zone focus without relying on autofocus or the viewfinder.
How does the internal focus system work?
It uses a dual focus mechanism with a floating focus system that keeps the front element stationary throughout the focus range. This design maintains optical performance from infinity down to 0.18m without the front element rotating or extending.
SpecificationValue
Focal Length24mm
Max Aperturef/1.8
MountNikon F (FX)
Filter Thread77 mm
Dimensions84 mm x 83 mm (diameter x length)
Weight485 g (1.07 lb)

This description was generated using AI based on KEH's internal product standards, product expertise, and knowing what customers care about most. While we strive for accuracy, details may vary by individual item.

Brand Name Sigma
Filter Size 77mm
Focus Type Autofocus (camera motor)
Lens Mount Nikon F Mount D Type
Lens Type Wide-Angle
Max Focal Length 24mm
Min Focal Length 24mm

Learn what to expect from each condition, cosmetically. Images are representative of each grade and may not show the exact item you receive. All equipment is guaranteed to work as intended, unless otherwise noted. We also occasionally offer items that fall .

Exceptions


New
New in box complete with manufacturer's USA warranty. Not previously owned or used.
Like New
Essentially new with no signs of use. “Open box.” In manufacturer's packaging with original accessories and instructions. 180-day warranty.
As Is
Non-functional or damaged. Equipment will not work. Usable for parts. Not covered under KEH warranty and non-returnable.

Like New Minus

Like New Minus
Like New Minus

Like New Minus

Barely used with virtually no traces of wear. Only the closest inspections will reveal slight use. Lens glass could contain light dust or debris. Excellent picture quality. Accessories usually not included, unless noted in listing. 180-day warranty.

Excellent Plus

Excellent Plus
Excellent Plus

Excellent Plus

Lightly used with limited signs of wear. Exceptionally nice but may have slight wear on finish visible. Lens glass could contain light dust or debris. Excellent picture quality. Accessories usually not included, unless noted in listing. 180-day warranty.

Excellent

Excellent
Excellent

Excellent

Noticeably used with average signs of wear. Shows moderate wear for the age of the item, with the possibility of blemishes and/or minimal dings. Lens glass may have average dust and zoom/focus ring tension may have slight looseness or tightness overall, but will not affect picture quality. Accessories usually not included, unless noted in listing. 180-day warranty.

Bargain

Bargain
Bargain

Bargain

Frequently used with above-average wear. May have dents, dings, or finish loss. Lens glass may have small scratches, dust, and blemishes, and zoom/focus ring tension may have moderate looseness or tightness overall, but should not affect picture quality. Accessories usually not included, unless noted in listing. 180-day warranty.

Ugly

Ugly
Ugly

Ugly

Heavily used with extensive visible wear. Equipment is rough, with multiple impressions in the finish, excessive finish loss and brassing. Glass will have marks, fungus and/or heavy/cloudy haze which could affect picture quality. Accessories usually not included, unless noted in listing. Not covered under KEH warranty.

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